为更好地了解并掌握香榧Torreya grandis'Merrillii'林下鼠茅Vulpia myuros的覆植技术,本文以丽水市松阳县象溪镇香榧基地为实验基地,对鼠茅的生长特性、生长规律进行观察,并对不同播种时间(2021年11 月10日和2022年 3月 5日)和覆土处理(不覆土、扫帚扫垄面覆土、扫帚扫垄面加铁锹拍压覆土)对鼠茅种子发芽及杂草萌生数量的影响进行研究.结果表明,鼠茅生长期为3～6个月,生长所需平均温度在11～24℃;春播鼠茅样地中的杂草萌生数量比秋播的多,二者呈极显著差异(P＜0.01);除秋播不覆土处理外,播种后,春播和秋播鼠茅种子的发芽率在50.8%～53.4%,其中春播鼠茅的发芽率比秋播的发芽率略高;鼠茅播种后的覆土措施以扫帚扫垄面覆土处理为宜.综合认为,鼠茅的播种时间以秋天(10-11月)为宜.

2019年10月24日,采集'长林40号'油茶Camellia oleifera果,设置油茶鲜果不同仓储层高(10 cm、20 cm、30 cm)和仓储时间(5 d、10 d、15 d),测定油茶鲜果的开裂程度、霉变率、含水率和油茶籽的出油率、出油品质等指标,研究不同的仓储后熟处理方法对油茶鲜果脱壳效果和油茶籽出油品质的影响.结果表明,不同处理对油茶鲜果的开裂程度、霉变率及油茶籽的出油率均有较大的影响,但对油茶籽的含水率和出油品质的影响不大,其中仓储高度为10 cm、仓储时间为15 d时,油茶果蒲的未开率从未处理对照(CK)的73.3％显著下降至15％,半开率从CK的6.7％上升至26.7％ ～35.0％,全开率则从CK的0上升至26.7％ ～28.3％,果蒲霉变率为3.3％,但鲜籽均未发现霉斑,油茶籽出油率从CK的33.07％显著上升至40.49％.建议在生产实践中推广应用仓储高度为10 cm、仓储时间为15 d的油茶果蒲仓储后熟处理.

To study the effects of bag-removing on fruit quality of persimmon in different bagging treatments during the critical growth period within one week , white single-layer composite paper bag and outer yellow and inner black double-layer bag were selected to bag Fuyu persimmon on Jun .25th and bags were removed on Oct .16th, and the treatment without bag-removing was used as the control .Fruits in each treatment were picked on Oct .17th, Oct. 18th, Oct.19th, Oct.21st, Oct.23rd.The results showed that, fruit quality, color, content of carotenoids and Vc were improved after bag-removing in the critical growth period , but defective fruit rate was increased , which was ob-viously observed in the treatment of double-layer bag .According to the results , the treatment of white single-layer composite paper bag in harvest was suggested in production .